Home / 27,739.61-38,284.22-15,807.23

Finding the Fourth Proportional to 27,739.61, 38,284.22 and 15,807.23

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Solution

The fourth proportional to 27,739.61, 38,284.22 and 15,807.23 is: 21,816.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,739.61 : 38,284.22 = 15,807.23 : x
  2. Step 2: Convert to fraction form
    27,739.61/38,284.22 = 15,807.23/x
  3. Step 3: Cross multiply
    27,739.61x = 38,284.22 × 15,807.23
  4. Step 4: Simplify right side
    27,739.61x = 605,167,391.87
  5. Step 5: Solve for x
    x = 605,167,391.87/27,739.61
  6. Step 6: Final answer
    x = 21,816.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.